A system of government by all the eligible members of a nation, typically through elected representatives; it is the citizens controlling the government. In contrast, dictatorships and monarchies rely on a single person to direct the course of their nations. God’s intention was for the Jewish people of the OT to be governed by Him (a theocracy) through the delegated leadership of the judges and prophets, but the people demanded a king like the other nations around about them (1 Sam 8:5).
Democracy assumes that the people as a whole are worthy to make morally sensible decisions for themselves through having a clear sense of right and wrong together with the willingness to adhere to those decisions in a spirit of mutual respect.
Christianity does not mandate democracy or any other form of earthly government, yet, democracy and Christianity are compatible. However, this does not mean consensus on all matters as humanity is rapidly moving away from the heritage based on godly principles. This cultural drift is sliding from democracy into tyranny for when a culture abuses its democratic power and sound foundation, the result is chaos and ruin. It is a recognised fact that nations with a Christian heritage of democracy were known for allowing their citizens freedom and having good human rights, however the whole world's systems are unravelling in the lead up to the end times, with corruption and bad policy replacing sound judgement and the good of the population.
God's ways are to take priority
there should be a separation of church (personal spirituality) and human government so neither institution exerts formal control over each other.
The Magna Carta of 1215 is one of the most important documents in history as it established the principle that everyone is subject to the law, even the king, and guarantees the rights of individuals, the right to justice and the right to a fair trial.